Blind Tapped Flanges,Npt Threaded Blind Flange,Test Flange

Test Flange is made of the blind flange,with tapped NPT Threaded hole in the middle.

blind flange with 1/2 npt tapped thread

These include NPT tapped holes and special threads to allow pressure test connections to be fitted.  Blind flanges are generally used to blank off the ends of pipe.  They are also used on similar valves and pressure vessel openings.  Because they are often located at the ends of systems, these flanges often are among the highest stressed flange types.

Flanges Material:

CARBON STEEL – ASTM/ASME SA-105, A-350 LF-2, LF-3, A694, SA-516-70,

CHROME ALLOYS – A-182-F-1, F-5, F-6, F-7, F-9, F-11, F-12, F-22, F-51

STAINLESS STEEL – A-182 – F-304, 304L, 316, 316L, 309, 310, 317L, 321, 347,Alloy 20

ALUMINUM – 1100, 2014, 3003, 5083, 5086, 6061, 7075

HASTALLOY – B-2, C-276, G, X

INCONEL – 600, 601, 625, 718

INCOLLOY – 800, 825

MONEL – 400

 

Blind NPT Tapped Flanges